About Make Sure I Know It
Make Sure I Know It maps who a company depends on and who depends on it. Each map lays out four tiers: the customers that buy from the company, the manufacturers that build for it, the suppliers of its raw materials, and the makers of the equipment its production runs on. Listed companies carry their ticker and exchange, so you can go from “who makes Nvidia's chips?” to a watchlist in one step.
The site is built and run independently by Krunal, a software developer. It isn't affiliated with, sponsored by, or endorsed by any company that appears on a map.
Who it's for
Investors researching a theme (if you like a company, its key suppliers are often worth a look too), students and analysts who need a quick picture of an industry, and anyone curious about where the things they use come from.
How a map is made
- Public sources first. Relationships come from what companies disclose themselves: annual reports and 10-K/20-F filings, investor presentations, earnings-call remarks, supplier lists and press releases, plus reputable trade and financial press.
- AI-assisted research, human-checked.We use AI tools to gather and structure those sources into a draft map. Each draft is then reviewed before it's published: relationships that can't be traced to a credible source are removed, and each company's role is written in plain language.
- Risk flags. Where a company relies on one supplier or a small group of them for something critical, the map flags it as a dependency risk.
- Kept current. Maps are revisited when filings or major news change a relationship. The published date on each map shows when it was last generated.
Limits worth knowing
- Many supplier relationships are confidential. A map shows the relationships that are publicly known or credibly reported, not every contract.
- Stock prices shown on maps are reference figures, not live trading quotes.
- Nothing here is investment advice. Do your own research before buying or selling any security.
- Company icons are generated shapes in a brand-like colour, not official logos.
Corrections and requests
Spotted a wrong relationship, or want a company mapped? Use the request and report form or contact us. Corrections with a source link are usually fixed within a few days.
How the site is funded
Maps are free to read. The site is paid for by a low-cost Pro plan, one-time Excel downloads of individual maps, display advertising, and partner links to investing tools, which are always labelled.